نتایج جستجو برای: speed rail
تعداد نتایج: 214392 فیلتر نتایج به سال:
The development of new technologies has significantly influenced railways modernization and caused the appearance high-speed rail which represent a safe, comfortable ecologically sustainable way transportation. present big step in relation to conventional railways, where biggest difference is speed even entails change other organizational operational parameters, better utilization trains, highe...
22 23 Implementation of highway-rail grade crossing warning systems, educational programs and 24 research on crossings have all contributed to a steady reduction in the risk to highway users of 25 grade crossings over the past several decades. Much less attention has been given to 26 understanding the effect of grade crossings on train safety and risk. Collisions at highway-rail 27 grade crossi...
Railroads play a key role in the transportation of hazardous materials in North America. Rail transport differs from highway transport in several aspects, an important one being that rail transport involves trains in which many railcars carrying hazardous materials travel together. By contrast to truck accidents, it is possible that a train accident may involve multiple hazardous materials cars...
High speed rail is a good example of a complex social-technical system, it combines high technology with social institutions to provide transport service. However, in spite of advances in HSR technology, HSR service is operated in much the same manner as traditional passenger rail service – an unsuccessful long-term business model. This research argues that HSR needs disruptive innovation to cr...
The environmental effects of ground-borne vibrations generated due to localised railway defects is a growing concern in urban areas. Frequency domain modelling approaches are well suited for predicting vibration levels on standard railway lines due to track periodicity. However, when considering individual, non-periodic, localised defects (e.g. a rail joint), frequency domain modelling becomes ...
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